Assume time t runs from zero to and that the unit circle
has been labled as a clock.
Match each of the pairs of parametric equations with the
best description of the curve from the following list. Enter
the appropriate letter (A, B, C, D, E, F ) in each blank.

A. Starts at 12 o'clock and moves clockwise one time around.
B. Starts at 6 o'clock and moves clockwise one time around.
C. Starts at 3 o'clock and moves clockwise one time around.
D. Starts at 9 o'clock and moves counterclockwise one time around.
E. Starts at 3 o'clock and moves counterclockwise two times around.
F. Starts at 3 o'clock and moves counterclockwise to 9 o'clock.
1. 2. 3. 4. 5.